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This picture taken on March 11, 1974 shows former Japanese imperial army soldier Hiroo Onoda (2nd L) walking from the jungle where he had hidden since World War II, on Lubang island in the Philippines. Onoda, who hid in the Philippine jungle for three decades because he did not believe World War II was over, has died in Tokyo on January 17, 2014, at the age of 91. The former soldier waged a guerilla campaign in Lubang Island near Luzon until he was finally persuaded in 1974 that peace had broken out. JAPAN OUT AFP PHOTO / JIJI PRESS (Photo credit should read JIJI PRESS/AFP/Getty Images)

This picture taken on March 11, 1974 shows former Japanese imperial army soldier Hiroo Onoda (2nd L) walking from the jungle where he had hidden since World War II, on Lubang island in the Philippines. Onoda, who hid in the Philippine jungle for three decades because he did not believe World War II was over, has died in Tokyo on January 17, 2014, at the age of 91. The former soldier waged a guerilla campaign in Lubang Island near Luzon until he was finally persuaded in 1974 that peace had broken out. JAPAN OUT AFP PHOTO / JIJI PRESS (Photo credit should read JIJI PRESS/AFP/Getty Images)
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This picture taken on March 11, 1974 shows former Japanese imperial army soldier Hiroo Onoda (R) offering his military sword to former Philippine President Ferdinand Marcos (L) to express his surrender at the Malacanan Palace in Manila. Onoda, who hid in the Philippine jungle for three decades because he did not believe World War II was over, has died in Tokyo on January 17, 2014, at the age of 91. The former soldier waged a guerilla campaign in Lubang Island near Luzon until he was finally persuaded in 1974 that peace had broken out. JAPAN OUT AFP PHOTO / JIJI PRESS (Photo credit should read JIJI PRESS/AFP/Getty Images)

This picture taken on March 11, 1974 shows former Japanese imperial army soldier Hiroo Onoda (R) offering his military sword to former Philippine President Ferdinand Marcos (L) to express his surrender at the Malacanan Palace in Manila. Onoda, who hid in the Philippine jungle for three decades because he did not believe World War II was over, has died in Tokyo on January 17, 2014, at the age of 91. The former soldier waged a guerilla campaign in Lubang Island near Luzon until he was finally persuaded in 1974 that peace had broken out. JAPAN OUT AFP PHOTO / JIJI PRESS (Photo credit should read JIJI PRESS/AFP/Getty Images)
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Japan's Emperor Akihito (R) and Empress Michiko (2nd L-back to camera) talk to former Japanese soldiers who served in World War II, during a visit to a memorial garden for Japanese soldiers killed during the war, in Caliraya, south of Manila on January 29, 2016. The Japanese emperor and empress are in the Philippines for a five-day visit. AFP PHOTO / TED ALJIBE / AFP / TED ALJIBE (Photo credit should read TED ALJIBE/AFP via Getty Images)

Japan's Emperor Akihito (R) and Empress Michiko (2nd L-back to camera) talk to former Japanese soldiers who served in World War II, during a visit to a memorial garden for Japanese soldiers killed during the war, in Caliraya, south of Manila on January 29, 2016. The Japanese emperor and empress are in the Philippines for a five-day visit. AFP PHOTO / TED ALJIBE / AFP / TED ALJIBE (Photo credit should read TED ALJIBE/AFP via Getty Images)
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This picture taken on March 12, 1974 shows former Japanese imperial army soldier Hiroo Onoda (C) waving upon his return home, at Tokyo international airport, after living for some 30 years in the Philippine jungles. Onoda, who hid in the Philippine jungle for three decades because he did not believe World War II was over, has died in Tokyo on January 17, 2014, at the age of 91. The former soldier waged a guerilla campaign in Lubang Island near Luzon until he was finally persuaded in 1974 that peace had broken out. JAPAN OUT AFP PHOTO / JIJI PRESS (Photo credit should read JIJI PRESS/AFP via Getty Images)

This picture taken on March 12, 1974 shows former Japanese imperial army soldier Hiroo Onoda (C) waving upon his return home, at Tokyo international airport, after living for some 30 years in the Philippine jungles. Onoda, who hid in the Philippine jungle for three decades because he did not believe World War II was over, has died in Tokyo on January 17, 2014, at the age of 91. The former soldier waged a guerilla campaign in Lubang Island near Luzon until he was finally persuaded in 1974 that peace had broken out. JAPAN OUT AFP PHOTO / JIJI PRESS (Photo credit should read JIJI PRESS/AFP via Getty Images)
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